Pronunciation: (bōl'shu-vik, bol'-; Russ. bul-shi-vyēk'),[key] —n., —pl.-viks, -vik•iPronunciation: (-vik"ē, -vē"kē; Russ. -vyi-kyē').[key] 1. (in Russia)
a. a member of the more radical majority of the Social Democratic party, 1903–17, advocating immediate and forceful seizure of power by the proletariat.
b. (after 1918) a member of the Russian Communist party.
2. (loosely) a member of any Communist party.
3. Derogatory.an extreme political radical; revolutionary or anarchist. Also,bol'she•vik.